When i hold down command and r at the same time after restarting it comes up with a
When i hold down command and r at the same time after restarting it comes up with a black screen and a lock symbol and a field bellow where you would input a password, i have tried ALL of my possible passwords including my password i use for the mac and it stil will not work! all that happens is the text i put in bellow erases itself after hiting enter or clicking the arrow.
MacBook Pro with Retina display, OS X Mavericks (10.9.3)